.gutter {
  background-color: #dddddd;
}
.gutter:hover {
  background-color: #c4e1a4;
}

#toolbar {
  overflow: hidden;
  padding-left: 3px;
}
#toolbar .fa {
  padding: 2px 5px;
  border: 1px solid transparent;
}
#about-icon {
  height: 20px;
  vertical-align: top;
}

#toolbar .fa:hover,
#about-icon:hover {
  background-color: #999;
  border-color: #ccc;
  cursor: pointer;
}

.dividor {
  font-style: normal;
  color: #ddd;
  margin: 0 6px;
}

/* toolbar cannot be select */
.noselect {
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  -khtml-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

/* fix clicking anchor scroll issue */
h1,
h2,
h3,
h4,
h5,
h6 {
  scroll-margin-top: 1px;
}

/* code highlight */
pre code.hljs {
  padding: 0;
}

/* custom container */
.success,
.info,
.warning,
.danger {
  padding: 15px;
  margin-bottom: 20px;
  border: 1px solid transparent;
  border-radius: 4px;
}
.success > p:last-child,
.info > p:last-child,
.warning > p:last-child,
.danger > p:last-child {
  margin-bottom: 0;
}
.success {
  color: #3c763d;
  background-color: #dff0d8;
  border-color: #d6e9c6;
}
.info {
  color: #31708f;
  background-color: #d9edf7;
  border-color: #bce8f1;
}
.warning {
  color: #8a6d3b;
  background-color: #fcf8e3;
  border-color: #faebcc;
}
.danger {
  color: #a94442;
  background-color: #f2dede;
  border-color: #ebccd1;
}

/* mermaid */
pre.mermaid {
  text-align: center;
}